s32k sai mclk problem

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s32k sai mclk problem

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nullnullnull
Contributor I

a case :

sample rate 96k  tdm 8channel 32bit per word

bclk will be 24.576mhz

then, mclk should be 49.512mhz

why the frequency of mclk cannot be more than 24.576mhz in datasheet?

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Robin_Shen
NXP TechSupport
NXP TechSupport

Hi

There is BYP Bit Clock Bypass in 75.6.1.6 Transmit Configuration 2 (TCR2) :

BYP 75.6.1.6 Transmit Configuration 2 (TCR2).png

If set, it allows to bypass the bit clock divider, thus BCLK is divided by 1 of audio master clock.


Best Regards,
Robin
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